Grease-cup.



O. ZERK.

GREASE CUP. 1

' APPLICATION FILED NOV.13,1912.

1,109,641, Patented Sept. 1,1914.

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OSCAR ZERK, OF CLEVELAND, OHIO, ASSIGNOR, BY MESNE ASSIGNMENTS. T0

.. Y GEORGE w. BOWEN, or AUBURN, new YORK.

GREASE-CUP.

l .i oacai; Specification of Letters Patent Patented Sept. 1, 1914.

Application filed November 13, 1912. Sc1'ialNo. 731,206.

To (all whom it may concern:

Be it known that 1, Oscar: Znnn, sub ect of the Emperor of Austriadlungary, residing at Cleveland, in thecounty of Guy: hoga and State, of Ohio, have invented a certain new and useful Improvement in Grease-.Cups, of which the following is a full, clear, and exact description, refer-' ence being had to the accompanying drawings.

This invention relates to grease cups of the type wherein there is a cup, a cap screwing onto the cup, a member adapted to restrain the cap against inadvertent rotation, and a spring acting on said member.

The object of the invention is to simplify and cheapen the construction of such a type the cap, there being a spring surrounding the cup and acting on the collar to force itagainst the cap.

The invention 1s hereinafter more fully explained and its essential characteristics set out in the claims;

In the drawings, Figure 1 is a vertical, cen tral section of my grease cup; Fig. 2 is a horizontal section through the'cup and cap just above the collar; Fig. 3 is an enlarged central cross section of the collar, in a plane indicated by the line 33 on Fig. 2; Fig. 4 is a detail showing the shoulder carried by the collar, this view beinga section on the line indicated by 4i-4 on Fig: 2. Figs. 3

and a are on an enlarged scale. Fig. 5 is aside elevation of the cap removed.

Referring by nun'ierals to the parts shown in the drawing, 1 represents the cup, 2 the cap screwing tl'icreonto, 8 the collar which coacts with the cap, and 4 the spring for forcing the collar into such engagement. The cup 1 has an externally threaded or nipple portion 10, by which it may be screwed into a suitable opening, and above this an angular portion 11, which may be hexagonal, and above. this an enlarged head 12 which has'cxternal threads. A suitable bore 13 extends through the head, the angular portion and the nipple portion 10."

the bore 13.

The cap 2 is of the approximately cylindrical form shown, having internal threads 20. The cap is shown as provided with a wing 21 on its top Y which it may be turned, and with a knurled exterior 22 for the same purpose. The cap has notches 2a in its lower edge which coact with the collar, hereinafter described.

The collar 3 is a sheet metal member A flanged up from a disk in the form shown 1n l igs. 1 to l inclusive. That is to say, there is a. disk portion 30 which. has a hexagonal opening 31, whereby it may slidably surround the cup without being capable of rotation thereon, and at the outer edge of this disk portion the metal bends downwardly and outwardly, shown at 32, and then. backwardly on itself and then u 'iwardly in the form of a cylindrical flange 33. The diagonal downward and. outward flange, provided by the double portion, gives a very neat appearance to the collar, and, at the same time, causes the cylindrical flange to be firmly and stifily connected with the bottom portion of the collar. The downward flange also makes a retainer for the upper end of. the sprin as hereinafter explained.

Presse upwardly from the bottom portion of the collar 3 near the flanges 32 and 33 are a plurality of projections 35, four being shown in the drawings. These proje etions are inclinedlgradually on one side and abruptly on the other, as clearly shown in Figs. 2, 3 and/l. The projections are made by pressing upwardly the bottom surface of the collar by suitable dies. The projections are positioned so that they stand adjacent the lower edge of the cap 2 and are adapted to co operate with such lower edge and with the notches 24 therein; The spring 4- is a conical compression spring. Its lower end rests upon a flange or collar 41 forced into a groove in the member 1 and bearing against av shoulder provided by the angular portion 11 of'that member. The '11 per end ofthe spring rests against the bottom of the collar 3 within the downwardly projecting flange or doubled edge 32 thereof.

In operation, the cap 2 is turned down, as necessary to force the grease therein through In this operation, as the notches 24 pass off the projections 35, the collar 3 is forced downwardly against the spring action and then springs back when the notches come into registration with the next projections. The result is that, as the cap is left with eollarprojeetions seating in the notches, the cap is held against inadvertent rotation. The direction of the projections 35 is gradual in the direction in whicl'r the cap turns to screw on and abrupt 1n the oppositedirection. The notches of the cap are. formed correspondingly to those in the collar, as shown in the ease of the two notches illustrated in Fig. From this it results that the cap may be easily turned onwardly 011 the cup, but a greater resistmice is provided against the screwing-oil direction. This tends to prevent one turning the cap off when he intends to turn it on; while the cap may be removed when bodiment shown it consists ofsimply five parts; the cup, the cap, the collar, the spring and the washer supporting the sprin These parts are all adapted for economical manufacture and cooperate to produce an ellicient and durable grease cup.

Having thus described my invention, what I claim is:'

1. In a grease cup, the combination of a cup, a cap screwing onto the same, a'sheet metal collar slidably mounted on the cup, and a spring forcing the collar toward the cap, the collar being formed with an upwardly projecting annular marginal flange lapping the periphery of the cap, and upwardly extending projections located adjacent the base of the flange and formed by indenting the body' of the collar from the under side thereof, the projections cooperating with notches on the loweredge of the cap, substantially as and for the purpose described.

2. In a grease cup, the combination of a cup, a cap screwing on the same, a collar slidably,mounted on the cup, and a spring forcing the collar toward thecap, the collar and cap having cooperating projections and -upward flange, the upward llangc lapping the periphery of the cap, and the c llar being indented from the lo\, cr side thereof near said flanges forming upward. projections constituting the projections coacting with the notches at the lower edge of the cap, substantially as and for the purpose specified.

In a grease'cup, the combination of a cup having body with shank and an extended head, a cap internally screw threaded screwing onto the head,' aj collar having bore surroundingthe shank of the cup, said collar near its outer edge bent downwardly and then bent backwardly on itself and upwardly to prmide for a downward and an upward flange, the upward flange adapted to extend over the outside of the wall of the cap, and a coiled spring surrounding the shank of the cup and having its upper coil lying within the down-turned flange on the collar.

4C. In a grease cup, the combination o1 a cup having a body with an angular exterior and an extended head, a cap internally screw threaded screwing onto the head, a collar having an angular bore surrounding the shank of the cup, said. collar being of metal and near its outer edge bent downwardly and then bent backwardly on itself and upwardly to provide for a downward the shoulders being l'ormcd by pressing the bottom portion of the collar upwardly.

In testimony whereot, .l hereunto aflix my signature 1n the presence 0t two witnesses.

OSCAR ZERK.

Witnesses:

A nenn'r I-l. Barns, BRENNAN B; \Vns'r.

ice 

